What changed in EDuke32, build by build

Extend SE 26 to use the value provided by a GPSPEED, if any.

Remove bounds check on rotatesprite coordinates.

Perform keyboard layout switching whenever window focus is gained or lost.

Make layout switch duplicate guard bidirectional.

Refactor keyboard layout switching code into winbits.c and clean it up. No functional changes.

Fix linking of mdpause variable with POLYMER=0 in screens.c, exposed by Visual Studio. DONT_BUILD.

Fix STARTUP_WINDOW=0 on Windows so that the resource objects are built, but the editor's startup window is not. DONT_BUILD.

Extend STARTUP_WINDOW to GTK. DONT_BUILD.

Fold OSX_STARTUPWINDOW into STARTUP_WINDOW. DONT_BUILD.

Avoid unused variable warning with the startup window disabled. DONT_BUILD.

Add support for MOD, XM, IT, and S3M tracker music through libxmp-lite.

Remove disabling certain mouse features under debug builds. It makes mouse aiming unusable.

Remove -fno-pic from everywhere. This should fix building on Ubuntu 16.10 and any other platform that has PIE enabled.

Revert r5864 and move some code introduced in r5762 to a later Mac-only block so that architecture detection is not broken on Linux.

Work around warning: signed and unsigned type in conditional expression [-Wsign-compare] indirectly caused by the SDL 2.0.5 headers making all preprocessor macro literals unsigned.

Add #ifdef USE_OPENGL forgotten in r5024 that causes an OOB access in scansector() and glitchy mirrors with USE_OPENGL=0.

Amend r5911 to use undefinetile instead of only zeroing out the MIRROR tile's dimensions.

Extend undefinetile to also remove voxels, hightile (including skyboxes) and models.

Add vox_undefine().

Amend r5910 so that the problem is mitigated even when the map load takes place with a different renderer.

Revert a formatting change from r5725.

Move the nulling of the MIRROR tile to after defs are parsed so that tilefromtexture does not interfere with mirror function.

Clear wsprinfo[] upon map load. This should address some remaining instances of wall-ornamented sprite z-fighting.

To avoid potential compiler bugs when inlining inline assembly, remove the asm variants of msqrtasm and always use the C version. Compilers generate equivalent or better assembly, and the function is used exactly once, in a routine called during startup.

C-CON and M32script: Only accept hex literals beginning with '0' and not any other digit.

Fix the parser so tokens with 'x' or 'X' as a second character are only treated as hex constants when the first character is '0'. Introduced in r5822.

Fix the off-by-one error when printing line numbers.

SDL 2.0.5

Don't set the window icon from code if we are linked with SDL >= 2.0.5 on Windows, since it will now automatically use the first icon in the exe.

Add EDUKE32_SDL_LINKED_PREREQ macro.

Disable Windows thread naming because it interferes with debugging.

Implement "divscale" and "scalevar" (scale()) in C-CON and "scalevar" in M32script.

Fix improper matching of loop tags with initial substrings of them, and add proper support for LOOP as a synonym of LOOP_START.

Bump PSKYOFF_MAX from 4 to 8.

Add "yoffset" subtoken to "multipsky".

Re-enable the use of psky_t's yoffset.

Fix addlogvar command, broken in r5835.

GL .blend support.

In 8-bit, change the precedence of .alpha and .blend.

Cosmetic changes to some blend/alpha related code.

Don't unpause sounds when exiting the menu back to a Game Paused state.

Remove the Polymer aspect ratio option, as it was always broken, and I don't know what purpose it has besides configuring non-square pixel stretching, which we have a long way to go in terms of configuring anyway.

Fix clang Windows build. DONT_BUILD.

Fix mistake in r5862. DONT_BUILD.

Fix erroneous display of MESSAGES: ON when it should be OFF.

Fix TEST_SYNC_KEY macro to always return 1 or 0.

Allow an invocation like `make CC=clang-3.8` to work properly.

Fix undefined behavior: null pointer passed as argument which is declared to never be null

Loop optimizations in screencapture

Fix ghost tsprite bug introduced in previous commit.

Finish what r5484 started but got reverted in r5723. Cstat 1024 now works properly in Polymost without causing any side effects in Classic. It remains unimplemented in Polymer.

Reinstitute the cosmetic cleanups that should have been a separate commit from r5484 and were reverted in r5723.

Fix MIDI playback on Windows, broken in r5817.

Fix warning: signed and unsigned type in conditional expression [-Wsign-compare]

Fix a bug in r5826 regarding display of the WWII GI rocket launcher.

Add bit 1 to action flags: use the viewpoint's position relative to the actor when calculating which rotation to display, instead of the viewpoint's angle, for viewtypes 2/3/4/8. 5/7 already do this.

Add an optional sixth parameter, a flags bitfield, to action definitions. Bump BYTEVERSION.

Enumify stuff having to do with action parameters.

Satisfy warning: this 'if' clause does not guard... [-Wmisleading-indentation]

Fix warning: logical 'and' of equal expressions [-Wlogical-op]

Fix warning: left shift of negative value [-Wshift-negative-value]

Fix simple_array operator[] parameter type.

Correct an oversight in r3580.

Revert part of r5481. We can't rely on the sprite trackers to tell us when tsprites change.

Restore some accidentally-working cases of SEs 5, 6, 14, and 30 broken in r3161.

Fix build on OpenBSD. DONT_BUILD.

Revert r5658. This fixes the disappearing chaingun problem.

In uploadtexture, don't assume that a non-masking texture can safely be sent to the driver without the alpha channel.

Fix the oversight in handling tspr->extra from r5400 by setting it to zero in polymer_scansprites.

Remove trailing whitespace from anything we don't need to rebase from an upstream.

Add some preprocessor checks on the output format to the asm.

Create GTK *_banner.c files in obj/ subfolders instead of rsrc/ so that they don't need separate cleanup rules.

Make Objective-C code build as Objective-C++ when we build C code as C++.

Add extra optimization defaults for OS X builds since all Intel Macs are guaranteed certain features due to the time of their debut.

Clean up handling of architectures.

Remove unnecessary asm unprotection of ylookup[].

Clean up self-modifying assembly unprotection and add PROT_EXEC to mprotect() calls.

Clean up creation of SDL_Renderer and provide information about the process to the log.

Clean up fallback video mode attempt code in order to fix at least three bugs.

A small patch from rhoenie to make our source compatible with the Intel C Compiler.